Guest:  Sir Martin Rees and Donald Goldsmith:  Topics:  Their new book, "The End Of Astronauts: Why Robots Are The Future Of Exploration" which proposes human spaceflight BLEO should be done by the private sector, not by government.  Our guests discuss this proposal on this specific program.

Guest:   Joe Carroll; Topics:  Joe's Power Point slide presentation posted on our blog re LEO debris.  Note the slides called out by Joe. Many related topics, Starship discussion topics, launching Starship near Singapore, debris liability concerns and much more.

Guest:  Dr. Casey Handmer:  Topics:  The primary topic was Casey's blog article "Starship is still not understood" at https://caseyhandmer.wordpress.com/2021/10/28/starship-is-still-not-understood.  Later in the show, we talked about his latest blog post, "Scaling carbon capture" at  https://caseyhandmer.wordpress.com/2021/11/01/scaling-carbon-capture.

Guest:  Dan Adamo;  Topics:  Multiple topics focusing on Inspiration 4, debris challenges, Starlink concerns, tourism, settlement, biological economics, rocket fuels and more.

Guest:  Charles (Charlie) Precourt; Topics:  Artemis, SLS, solid rocket boosters (SRBs), SRB propellant, lunar return timelines, human lunar lander, Gateway, Gateway lunar orbits, plus much more.